(19)

(11)

EP 2 467 339 A2

(12)

(88) Date of publication A3: 28.07.2011 (43) Date of publication: 27.06.2012 Bulletin 2012/26 (21) Application number: 10748026.1 (22) Date of filing: 20.08.2010

(51) International Patent Classification (IPC):  C03C 3/091(2006.01) C03C 3/085(2006.01) C03C 3/083(2006.01) C03C 3/04(2006.01) C03C 3/087(2006.01) (86) International application number: PCT/US2010/046153 (87) International publication number: WO 2011/022639 (24.02.2011 Gazette 2011/08)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 21.08.2009 US 235762 P (71) Applicant: Corning Incorporated Corning, NY 14831 (US)	(72) Inventors: DEJNEKA, Matthew J Corning New York 14830 (US) ELLISON, Adam J. Painted Post New York 14870 (US) HANSON, Benjamin Z. Big Flats New York 14814 (US) (74) Representative: Oldroyd, Richard Duncan  Elkington and Fife LLP Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)